Dominion Dental Services, Inc., Dominion National Insurance Company, and Dominion Dental Services USA, Inc
Disclosed Jun 21, 20197 years ago3,119,635 affectedConfirmed
Dominion Dental Services, the covered entity (CE), reported that it experienced a hacking attack that affected the protected health information (PHI) of 2,964,778 individuals. The PHI involved included names, dates of birth, addresses, some Social Security numbers, claims and financial information, and other clinical information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the CE updated its Security Rule Risk Management Plan and implemented new technical safeguards to mitigate harm.
What is known
| People affected | 3,119,635 (as reported by the organization) |
|---|---|
| Disclosed | Jun 21, 2019 |
| Discovered | Apr 24, 2019 |
| Happened | Aug 25, 2010 |
| Attack | Hacking |
| Data exposed | Names, Social Security numbers, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Dominion Dental Services, Inc., Dominion National Insurance Company, and Dominion Dental Services USA, Incoag.ca.gov · Official notice | Official notice |
| Oregon DOJ breach notice: Dominion Dental Services, Inc., Dominion National Insurance Company, and Dominion Dental Services USjustice.oregon.gov · Official notice | Official notice |
| Maine Attorney General breach notice archive: Dominion Dental Services, Inc., Dominion National Insurance Company, and Dominion Dental Services USAmaine.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Dominion Dental Services, Inc., Dominion National Insurance Company, and Dominion Dental Services USA (Health Plan, VA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Jun 21, 2019 | |
| Oregon DOJresidents of OR | Jun 21, 2019 | 3,119,635 |
| Maine AGresidents of ME | Jun 21, 2019 | 593 |
| HHS archivetotal | Jun 21, 2019 | 2,964,778 |
History of this record
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: ["names","ssn"] to ["names","ssn","health"] · backfill source
- 2026-09-25 · summary: empty to Dominion Dental Services, the covered entity (CE), reported that it experienced a hacking attack that affected the protected health information (PHI) of 2,964,778 individuals. The PHI involved included names, dates of birth, addresses, some · backfill source
- 2026-09-25 · data_types: [] to ["names","ssn"] · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 3119635 · backfill source
- 2026-09-25 · discovered: empty to 2019-04-24 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.